# Uzmeter vs Engineering Calculator HVAC

The clearest difference is update cadence: Uzmeter at every 2 months against Engineering Calculator HVAC's every 6 months. Uzmeter also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Uzmeter ships an update every 2 months, Engineering Calculator HVAC every 6 months. Both last shipped on October 28, 2026.

## The numbers

| Metric | Uzmeter | Engineering Calculator HVAC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Size | 50 MB | 19 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Samandar Ahadjonov](https://appshunter.io/developer/1812888233) | [aleksandr bronnikov](https://appshunter.io/developer/1885003900) |

## What reviewers say

### Uzmeter

[App page](https://appshunter.io/ios/app/uzmeter/id6758914689)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Engineering Calculator HVAC

[App page](https://appshunter.io/ios/app/engineering-calculator-hvac/id6760564633)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Uzmeter free?

Uzmeter is free to download, with no in-app purchases.

### Is Engineering Calculator HVAC free?

Engineering Calculator HVAC is free to download, with no in-app purchases.

### Do Uzmeter or Engineering Calculator HVAC have ads?

Neither Uzmeter nor Engineering Calculator HVAC shows ads.

### Which is updated more often, Uzmeter or Engineering Calculator HVAC?

Uzmeter ships an update every 2 months, and Engineering Calculator HVAC every 6 months. Most recently, Uzmeter was updated on October 28, 2026 and Engineering Calculator HVAC on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*